Asset Retirement Obligations

9 Months Ended

Sep. 30, 2016

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

Asset Retirement Obligations

Activity related to the Company’s asset retirement obligations is as follows:

(In thousands)	Nine Months Ended   September 30, 2016
Balance at beginning of period	$	145,606
Liabilities incurred	2,861
Liabilities settled	(708		)
Liabilities divested	(16,353		)
Accretion expense	5,295
Balance at end of period	$	136,701